Burner for pellets

Patent · Tue May 07 04:00:00 EDT 1985

OSTI ID:6460340

Orjala, M

In the combustion of granular fuels in current use the ash causes problems in fusing, in connection with combustion and ash extraction and additionally in the form of fuel lost when it becomes intermingled with the ash. In the burner according to the invention the fuel is continuously fed into the combustion space. The combustion air is fed to the space between the tubular parts and from there on through the lower holes in the primary air flange to the perforations in the grate below the combustion fuel layer. The secondary air is led through the flange upper part by way of the turboelements and air slits, as a horizontally swirling air flow through the combustion chamber to the furnace, where gases are burned while flowing in at a horizontal level. The flame flowing on this horizontal axis combusts any burning fuel which may have fallen to the bottom of the furnace. The ashes are extracted through the open mouth of the combustion chamber to the bottom of the furnace, partly fused and partly dry. Alternatively ashes fall to the feed base located in the combustion chamber from which it is extracted from the boiler.

• Assignee: Valtion Teknillinen Tutkimuskeskus (Finland)
• Patent Number(s): US 4515088
• OSTI ID: 6460340
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AEROSOL WASTES
ASHES
BOILERS
BURNERS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CONTROL
CONTROL
ENERGY LOSSES
FLY ASH
FUEL FEEDING SYSTEMS
FUEL PELLETS
FUEL SYSTEMS
FUELS
HEAT LOSSES
LOSSES
OXIDATION
PELLETS
REMOVAL
RESIDUES
SOLID FUELS
THERMOCHEMICAL PROCESSES
WASTES